Wang Yanshu, Nathans Jeremy
Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
Development. 2007 Feb;134(4):647-58. doi: 10.1242/dev.02772.
This review focuses on the tissue/planar cell polarity (PCP) pathway and its role in generating spatial patterns in vertebrates. Current evidence suggests that PCP integrates both global and local signals to orient diverse structures with respect to the body axes. Interestingly, the system acts on both subcellular structures, such as hair bundles in auditory and vestibular sensory neurons, and multicellular structures, such as hair follicles. Recent work has shown that intriguing connections exist between the PCP-based orienting system and left-right asymmetry, as well as between the oriented cell movements required for neural tube closure and tubulogenesis. Studies in mice, frogs and zebrafish have revealed that similarities, as well as differences, exist between PCP in Drosophila and vertebrates.
本综述聚焦于组织/平面细胞极性(PCP)通路及其在脊椎动物中产生空间模式的作用。目前的证据表明,PCP整合全局和局部信号,以使各种结构相对于身体轴定向。有趣的是,该系统作用于亚细胞结构,如听觉和前庭感觉神经元中的毛束,以及多细胞结构,如毛囊。最近的研究表明,基于PCP的定向系统与左右不对称之间,以及神经管闭合和肾小管形成所需的定向细胞运动之间存在着有趣的联系。对小鼠、青蛙和斑马鱼的研究表明,果蝇和脊椎动物的PCP之间既有相似之处,也有不同之处。